How to check if MSMQ is installed on the system?

Posted on 2006-07-13
Medium Priority
Last Modified: 2012-06-21
How to check if MSMQ is installed on the system? In my program, I need to check to see if MSMQ is installed. If yes, I need to create some message queue. Thanks!
Question by:waywaylu
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Expert Comment

ID: 17103979
Hope this helps:


Best regards
LVL 15

Accepted Solution

Ralf Klatt earned 150 total points
ID: 17104292

If Visual Basic is a language you'd be able to work with I'd suggest the following code:


Private Const MAX_MESSAGE_LENGTH = 512

Private Declare Function GetLastError Lib "kernel32" () As Long

Private Declare Function FormatMessage Lib "kernel32" Alias "FormatMessageA" (ByVal dwFlags As Long, lpSource As Any, ByVal dwMessageId As Long, ByVal dwLanguageId As Long, ByVal lpBuffer As String, ByVal nSize As Long, Arguments As Long) As Long

Private Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Long

Private Declare Function FreeLibrary Lib "kernel32" (ByVal hLibModule As Long) As Long

Function IsMSMQAvailable() As Boolean
    Dim hModule As Long
    hModule = LoadLibrary("msmqocm.dll")
    If hModule > 32 Then
        FreeLibrary hModule
        IsMSMQAvailable = True
        IsMSMQAvailable = False
    End If
End Function

Private Function GetAPIErrorMessageDescription(ByVal ErrNumber As Integer) As String
    Dim sError As String * MAX_MESSAGE_LENGTH
    Dim lErrMsgLen As Integer '32 bit message identifier
    lErrMsgLen = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, 0, ErrNumber, 0, sError, MAX_MESSAGE_LENGTH, 0)
    If lErrMsgLen > 0 Then
        GetAPIErrorMessageDescription = sError
    End If
End Function


You'd just have to call "If IsMSMQAvailable() Then ..."

Best regards,
LVL 15

Expert Comment

by:Ralf Klatt
ID: 17273450

@waywaylu ... thank you for having chosen my answer ... but, what was wrong with it? ... why that grade of "B"?

Best regards,

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